CVE-2020-28953 Business logic in n/a
Medium 4.3
Published
Updated
Check this codebase for CVE-2020-28953 and fix it if it is affected.
What it is: CVE-2020-28953 is a medium-severity vulnerability in n/a, published on 19 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-28953 in the wild and no public exploit code.
Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2020-28953/ (Markdown: https://insights.sbomify.com/CVE-2020-28953/index.md)
Attackers can vote multiple times in a single poll, compromising the integrity of voting results in BigBlueButton web conferencing sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-28953?
CVE-2020-28953 is a medium-severity vulnerability in n/a, published on 19 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In BigBlueButton before 2.2.29, a user can vote more than once in a single poll.
Which versions are affected by CVE-2020-28953?
It affects 1 product.
Products include Bigbluebutton Bigbluebutton.
How do I fix CVE-2020-28953?
No fix has been published for CVE-2020-28953 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-28953 being exploited?
There is no known exploitation of CVE-2020-28953 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-5j2f-fr5v-53mc.